/*
 * @(#)DetialGallery.java	 2012-3-2
 *
 * Copyright 2004-2012 WXXR Network Technology Co. Ltd. 
 * All rights reserved.
 * 
 * WXXR PROPRIETARY/CONFIDENTIAL.
 */

package com.ykdl.app.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.Gallery;
/**
 * 
 * 自定义的Gallery ，按项目滑动，比pagepager 用法简单点
 * @since 1.0
 */
public class DetialGallery extends Gallery {

	public DetialGallery(Context context, AttributeSet attrSet) {
		super(context, attrSet);
		// TODO Auto-generated constructor stub
	}

	public boolean isScrollingLeft(MotionEvent e1, MotionEvent e2) {
		return e2.getX() > e1.getX();
	}

	@Override
	public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
			float velocityY) {
		// TODO Auto-generated method stub
		// return super.onFling(e1, e2, 0, velocityY);//方法一：只去除翻页惯性
		// return false;//方法二：只去除翻页惯性 注：没有被注释掉的代码实现了开始说的2种效果。
		int kEvent;
		if (isScrollingLeft(e1, e2)) {
			// Check if scrolling left
			kEvent = KeyEvent.KEYCODE_DPAD_LEFT;
		} else {
			// Otherwise scrolling right
			kEvent = KeyEvent.KEYCODE_DPAD_RIGHT;
		}
		onKeyDown(kEvent, null);
		return true;
	}
}
